Culvert.



D BOYD. cULvER'T. PPLIQATIONSLBD=QBU- 15, 1903.

Patented Mar. 2,- 1909".

invention anon-.a

UNITED scn'rns PATENT onere DAVID (l. B OYD, OF GALION, OHIO.

CLVERT.

tao. 913,685.

Specification of Letters Patent.

Patented March 2, 1909.

Application :nea December 15, 190s. serial No. 467,642.

terlock ina peculiar manner with an adjoining section to forni `the complete culvert, the said )oint being effected in an easy and inexpensive manner and requiring no extra inaterial of any-kind, and lichting the sections l #of the parts that l lreference -is to be had to the4 following de-- scription and accompanying drawings in which:

Figure 1 isa side elevation, of two con'- l nected culvert sectlons constructed 1n Aac-.

cordance with my invention; Fig. 2 is a perspectivevie'w of one` end of asection; Fig. 3

isa similar'view of the opposite end thereof; and, Fig. 4 is a transverse 'sectional view through the sections.

Corresponding and l 'to in the following description and indicated in all the views of. the accompanying draw- 'ings bv the same reference. characters.

Each section of Inv improved culvert is formed of sheet metal and rolled into c vlin-v drical shape, 'either smooth or corrugated, ,the edges being overlapped and riveted, or secured together in any-other desired wav to form the body portion 1 'of the section. Flanges '.2 and 3 are formed on or secured to like parts are referred I being integralvn'th'the body .portion of the section inthe present instance. The flange at one end of al section is formed with a series of slots 4 and the flange at the opposite end of a section is formed with a series of slits 5, the said slits being preferably uf-sha e as shown, and the metal defined by sai slits being' bent loutwardly to form locking tonguesas indicated at i' In the manufacture of these culvert 5ertions, I pro ose to'punch out these tongues 6 and bend t 1cm so that they 'will stand out at right angles to those of the flange as clearly illustrated in Fig. 4 either at the saine time that the flange .itself is formed, or in a Subsc quent o eration, and in connecting together a. plurality of these culvert sections to form a complete culvert, it will be understood that the/tongues 6 of one section will be received in the slots 4 of the adjoiningllange of an adjoining section, the two flanges-abutting against each other,.a.nd the tongues being subsequently bent down or clenched so as to etfectually interlock thc sections together.

From the foregoing description, in connection with the accompanying drawings, it will be seen that culvert sections constructed in accordance with my invention may be easily manufactured land connected end to end to form a 'culvert of desired length, no extra materia] being necessary in the formation of the tongues 6, and `it being a .very easy matter to bendthe tongues down into locking engagen ment with theilange of an ad Joining section,

after` the tongues have been passed v` ith anendwise movement of the Section into and through the slots 4 that arc-designed to receive them.

.It is to be understood that the pliable tongues maybe of any desired construction or design and that the slots to receive said tongues may extend either radially. circumfcrentially,V or other-:rise

Having thus described the invent ion. u hat is claimed as new is:

1. A culvert section comprising a 'body the ends of the culvert sect-ions, the said portion provided vv ithendllangos.oncofsaid flanges projecting outwardly as shown, and l flanges being formed mth pliable tongues,

and the other end Hang@ being formed with with slots accommodating said tongt-les in slots. -Whch they are engaged*` 2. A culvert constructed in a lulalt'y of l In testimony whereof I ax my signatur@y Sections each' of which is formi-: 'Wit-1 1 end a in presence of two yWitmesses.

5 Hongos, the said flange-s boing held in abut- DAVID C. BOYD. v tlng relation, one flange bolng formed with V'vitnessefs;

unched out'J tongues, and the adjoining ,l W. J. GEEK,

ange of the adjoining section-boing formed l GARDA HOLMES, 

